I'm opacity 0
I'm opacity 0.2
I'm opacity 0.5
I'm opacity 0.8
I'm opacity 1
HTML source code
I'm opacity 0
I'm opacity 0.2
I'm opacity 0.5
I'm opacity 0.8
I'm opacity 1
CSS source code
body, p, img, a, div{ margin:0; padding:0;border:0;padding:0;} p, a{ background-color: blue; color: white;} h3{color: white;} body{ display: block;background-color: black; width:100%;} .op02 {opacity: .2;} .op05 {opacity: .5;} .op08 {opacity: .8;} .op00 {opacity: 0;} .op10 { opacity: 1;}